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Step * of Lemma null-upto

∀[n:ℕ]. (null(upto(n)) ~ (n =z 0))
BY
{ (InstLemma `upto_is_nil` [] THEN Auto) }

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Latex:

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Latex:
\mforall{}[n:\mBbbN{}].  (null(upto(n))  \msim{}  (n  =\msubz{}  0))


By

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Latex:
(InstLemma  `upto\_is\_nil`  []  THEN  Auto)

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